pow
ae
Ae. “tle
A population of 550 was assumed taebenmthe one that may move back to am
~isiemd.
Values for other
initial populations may-pe’“odtained vy ratios
of.the results.
tome
The total population at the end of 30 years is given by the
compounding equation:
P39 = 550 (140.038)2° = 1684
The number of births in 30 years are given by:
30
B= ooteso | (1,038)* dx
0
.
where x is the time between 0 and 30.
"
. 0042x550
in 1.038
Bo:
-
This gives
30 ..
[1.038°--ii =
i277
Similarly, the number of deaths in
the 30 year psriod would be:
39
Deaths = 0.0054x550
(1.035)"
x
dx
0
0.0054x550
Deaths = =o
int.038
One other
seem needed
A btm
[T.038°
«7-93
2s
.
30
~1) = 154
is the reduction in 30 year dose to those
te
.
4
born after the return because of tne decrease in radiation levels and
the smaller amount of time in the 30 year period that is spent on the
island.
For this,
the
total ronulation dose
for thos born after
returning assuming an initial dose rate of 1 rad/year is given dy